Anchor assembly for slickline setting tool for inflatables

Details Anchor assembly for slickline setting tool for inflatables Anchor assembly for slickline setting tool for inflatables

2007-10-22

2009-11-17

Bomar, Shane (Department: 3676)

Wells

Processes

Placing or shifting well part

C166S120000, C166S212000

Reexamination Certificate

active

07617880

ABSTRACT:
An anchor assembly for use in downhole slickline strings to set wellbore inflatables comprises, in one specific embodiment, an upper mandrel, an upper piston, radially extendable slips, a release piston in sliding engagement with a release mandrel, and a lower housing in sliding engagement with a lower mandrel. Fluid entering a bore of the anchor assembly forces the upper piston downward and extends the anchors. Thereafter, the slickline is reciprocated to pump fluid down the bore of the anchor assembly into the inflatable to prevent premature release of the inflatable. As the inflatable inflates, the lower housing is pulled downward along the lower mandrel until the inflatable is fully inflated. At a predetermined pressure after inflation of the inflatable, the anchors are retracted by actuation of the release piston so that the anchor assembly can be retrieved.

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